Emerson Rosemount Oxymitter 4000 Reference Manual page 99

July 2018
Table 8-1. Diagnostic LEDs
LED Flashes
Heater C/T 1
2
3
4
Heater 1
2
3
4
5
O Cell 1
2
3
4
Calibration 1
2
3
**
*Critical alarm conditions will render the O
events will cause the 4-20 mA signal to go to a user-selectable limit of 3.5 mA or 21.6 mA
(position 3 of SW2). Factory default value is 3.5 mA. Alarms which are not self-clearing
(Self-Clearing = NO) will require a reset. Perfom the Reset Procedure in Section 3: Configu-
ration of Hazardous Area Oxymitter 4000 withMembrane Keypad to continue operation.
**The calibration recommended alarm has been disabled in 2014, although it remains in
the menu.
Message Status
O T/C Open Heater T/C Open
2
O T/C Shorted Heater T/C Shorted
2
O T/c reversed Heater T/C Polarity Reversed
2
ADC Error A/D Comm Error
O Heater Open O Heater Open
2 2
Very Hi O Temp Very High Process Temperature
2
Board Temp Hi Electronics Overheated
O Temp Low Low Process Temperature
2
O Temp Hi High Process Temperature
2
O Cell Open O Cell Open
2 2
O Cell Bad O Cell Failed
2 2
EEprom Corrupt EEprom Failed
Calib Failed Last Calibration Failed
Line Freg Error Incorrect Line frequency Detected on Power Up
Troubleshooting
Status
Open
Shortened
Reversed
A/D Comm Error
Open
High High Temp
High Case Temp
Low Temp
High temp
High mV
Bad
EEprom Corrupt
Invalid Slope
Invalid Constant
Last Calibration Failed
Calibration Remmended
4-20 mA Line
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Dependent on position 3 of SW2*
Track O
2
Dependent on position 3 of SW2*
Track O
2
Track O
2
Track O
2
Track O
2
measurement as unusable, and any of these
2
Fault Number
1
2
3
4
5
6
7
8
9
10
11,13,14
12
15
Rosemount Oxymitter 4000
Fault Recoverable
1 No
2 No
3 No
4 No
5 No
6 No
7 Yes
8 Yes
9 Yes
10 Yes
11 Yes
12 No
13 Yes
14 Yes
15 Yes
Yes
Self Clearing
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
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